/Engine/Source/Runtime/Core/Public/Containers/Map.h
Assignment operator for copying elements from aTMapwith a different SetAllocator
template<typename OtherSetAllocator> [TMultiMap](API\Runtime\Core\Containers\TMultiMap) & operator= ( const [TMultiMap](API\Runtime\Core\Containers\TMultiMap)< KeyType, ValueType, OtherSetAllocator, KeyFuncs > & Other )